发明名称 |
CONTROLLED INRUSH CURRENT FOR CONVERTER-CONNECTED GRID FILTER |
摘要 |
A method, converter arrangement, and controller are disclosed for connecting an output of a converter with an electrical grid to control inrush currents into a grid filter assembly connected with the output of the converter, the electrical grid carrying an alternating current (AC) signal having one or more phases. The method includes determining a voltage of the AC signal and operating, after pre-charging a direct current (DC) link of the converter to a predetermined voltage, the converter using open-loop voltage control to produce an AC output signal that substantially matches the AC signal of the electrical grid. The open-loop voltage control is based on the determined voltage of the AC signal. The method further includes closing, after a predetermined amount of time of operating the converter using the open-loop voltage control, a switching device to thereby connect the output of the converter with the electrical grid. |
申请公布号 |
WO2016206688(A1) |
申请公布日期 |
2016.12.29 |
申请号 |
WO2016DK50170 |
申请日期 |
2016.06.08 |
申请人 |
VESTAS WIND SYSTEMS A/S |
发明人 |
ABEYASEKERA, Tusitha;DOAN, Duy Duc;ANDERSEN, Gert Karmisholt;HELLE, Lars;PEDERSEN, Tune;NIELSEN, John Godsk;ANDERSEN, Søren |
分类号 |
H02J3/38;F03D9/00;H02H9/00;H02J3/42 |
主分类号 |
H02J3/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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